Re: [PATCH 5/6] KVM: selftests: memslot_perf_test: Consolidate memory sizes

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On 10/18/22 3:47 PM, Oliver Upton wrote:
On Mon, Oct 17, 2022 at 10:08:48PM +0000, Sean Christopherson wrote:
On Mon, Oct 17, 2022, Maciej S. Szmigiero wrote:
+#define MEM_EXTRA_SIZE		0x10000

Also, an expression like "(64 << 10)" is more readable than a "1"
with a tail of zeroes (it's easy to add one zero too many or be one
zero short).

+1 to not open coding raw numbers.

I think it's high time KVM selftests add #defines for the common sizes, e.g. SIZE_4KB,
16KB, 64K, 2MB, 1GB, etc...

Alternatively (or in addition), just #define 1KB, 1MB, 1GB, and 1TB, and then do
math off of those.

I mean I love boilerplate as much as the next guy, but we can just use
tools/include/linux/sizes.h


Nice point, I didn't realize we already had 'tools/include/linux/sizes.h'.
The suggested macros (KiB, MiB, GiB, TiB and their variants) have been added
to PATCH[v2 5/6]. I think it's reasonable to use 'tools/include/linux/sizes.h'
directly instead of reinventing the wheel.

I will go ahead to use 'tools/include/linux/sizes.h' directly in v3 if nobody
objects. I would like to receive comments on v2 before I'm going to post v3.

Thanks,
Gavin

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